Cytotoxicity of Bio-Synthesized MgFe2O4@Ag Nanocomposite on Gastric Cancer Cell Line and Evaluation Its Effect on Bax, p53 and Bcl-2 Genes Expression

Author(s):  
Maryam Kardan ◽  
Ayda Pouraei ◽  
Negar Jaahbin ◽  
Taraneh Ghasemipour ◽  
Fatemeh Mehraban ◽  
...  
2021 ◽  
Vol 22 (14) ◽  
pp. 7698
Author(s):  
Sara Peri ◽  
Alessio Biagioni ◽  
Giampaolo Versienti ◽  
Elena Andreucci ◽  
Fabio Staderini ◽  
...  

Chemotherapy is still widely used as a coadjutant in gastric cancer when surgery is not possible or in presence of metastasis. During tumor evolution, gatekeeper mutations provide a selective growth advantage to a subpopulation of cancer cells that become resistant to chemotherapy. When this phenomenon happens, patients experience tumor recurrence and treatment failure. Even if many chemoresistance mechanisms are known, such as expression of ATP-binding cassette (ABC) transporters, aldehyde dehydrogenase (ALDH1) activity and activation of peculiar intracellular signaling pathways, a common and universal marker for chemoresistant cancer cells has not been identified yet. In this study we subjected the gastric cancer cell line AGS to chronic exposure of 5-fluorouracil, cisplatin or paclitaxel, thus selecting cell subpopulations showing resistance to the different drugs. Such cells showed biological changes; among them, we observed that the acquired chemoresistance to 5-fluorouracil induced an endothelial-like phenotype and increased the capacity to form vessel-like structures. We identified the upregulation of thymidine phosphorylase (TYMP), which is one of the most commonly reported mutated genes leading to 5-fluorouracil resistance, as the cause of such enhanced vasculogenic ability.


2014 ◽  
Vol 11 (3) ◽  
pp. 2269-2275 ◽  
Author(s):  
JIN-AN MA ◽  
CHUNHONG HU ◽  
WENJUAN LI ◽  
JING REN ◽  
FANGWEN ZOU ◽  
...  

1991 ◽  
Vol 82 (8) ◽  
pp. 883-885 ◽  
Author(s):  
Masanori Terashima ◽  
Kenichiro Ikeda ◽  
Chihaya Maesawa ◽  
Hidenobu Kawamura ◽  
Yorikazu Niitsu ◽  
...  

2004 ◽  
Vol 10 (6) ◽  
pp. 791 ◽  
Author(s):  
Jian-Jiang Zhou ◽  
Man-Ling Chen ◽  
Qun-Zhou Zhang ◽  
Jian-Kun Hu ◽  
Wen-Ling Wang

Oncotarget ◽  
2019 ◽  
Vol 10 (56) ◽  
pp. 5768-5779 ◽  
Author(s):  
Luana de O. Lopes ◽  
Jersey H. Maués ◽  
Hygor Ferreira-Fernandes ◽  
France K. Yoshioka ◽  
Severino C. Sousa Júnior ◽  
...  

2008 ◽  
Vol 14 (8) ◽  
pp. 1175 ◽  
Author(s):  
Yan Tao ◽  
Yong-Chang Chen ◽  
Yue-Ying Li ◽  
Shu-Qin Yang ◽  
Wen-Rong Xu

Sign in / Sign up

Export Citation Format

Share Document